package br.com.controlcivil.filtros;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import controllcivil.bean.Usuario;

public class FiltroLogin implements Filter {

	@Override
	public void destroy() {

	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {

	}

	@Override
	public void doFilter(ServletRequest req, ServletResponse resp,
			FilterChain chain) throws IOException, ServletException {

		HttpSession session = ((HttpServletRequest) req).getSession();
		Usuario usuario = (Usuario) session.getAttribute("USUARIO_LOGADO");

		if (usuario == null) {
			String contexto = ((HttpServletRequest) req).getContextPath();
			((HttpServletResponse) resp).sendRedirect(contexto + "/" + "login.xhtml");
			
		} else {
			chain.doFilter(req, resp);
			
		}
	}

}
